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3 years ago

How do you solve this for math 7th grade 1/7-(-4/7)

Mathematics

2 answers:

vladimir1956 [14]3 years ago

8 0

Answer:

$\frac{5}{7}$

Step-by-step explanation:

$\frac{1}{7} - ( - \frac{4}{7} ) \\ \frac{1}{7} + ( + \frac{4}{7} ) = \frac{5}{7}$

Roman55 [17]3 years ago

5 0

Answer:

$\frac{5}{7}$

Step-by-step explanation:

$\frac{1}{7} -(-\frac{4}{7} )$

two - makes a +

$\frac{1}{7} +\frac{4}{7}$

Add the numerators (1+4)

$\frac{5}{7}$

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Given the sequence 2, 5, 8, 11, 14, ..., which term is 59? (Hint: find n.)

____ [38]

N = 3 ( the next number is 3 plus the previous number
sequence formula = an = 3(n-1) +2

so for term the term that =59

59 = 3(n-1) +2

distribute:
59 = 3n -3+2

59 = 3n -1

60 = 3n
n = 60/3
n = 20

59 is the 20th term

8 0

3 years ago

Use the following regression results to answer the remaining questions. Y measures average hourly earnings AHE in U.S. dollars f

Ulleksa [173]

Answer:

Check the explanation

Step-by-step explanation:

Y = 11.5 + 4.5*X1 -2.5*X2 +0.7*X3+1.6*X4 -2.4*X5 -2.8*X6

FOR JANE

X1 =1 , X2 =1 , X3 =5 , X4 =0 ,X5=0, X6=1

SO,

Y =11.5+(4.5*1)-(2.5*1)+(0.7*5)+0+0-(2.8*1)

= 14.2

..........................

FOR Sophie

X1 =1 , X2 =1 , X3 =10 , X4 =1 ,X5=0, X6=0

so,

Y =11.5+(4.5*1)-(2.5*1)+(0.7*10)+ (1.6*1)+0+0

= 22.1

3 0

3 years ago

In the simplest radical form, what is the perimeter of a square with a diagonal of 12 cm?

Gnesinka [82]

Diagonal of a square is √2a
so,
√2 a = 12
a= 12/√2
and.. perimeter of a square is 4a
so,
peri = 4*12/√2
= 48/√2
=33.94cm

7 0

3 years ago

A sign in front of a roller coaster says "You must be 60 inches tall to ride." What percentage of this height is 36 inches? *

bonufazy [111]

Answer:

60%

Step-by-step explanation:

36/60 x 100= 60%

8 0

3 years ago

39/7 as a mixed number

svp [43]

39/7
7 can fit into 39 as a whole 5 times
you then have 4 left over
5 4/7

5 0

3 years ago

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